Pop star Jennifer Lopez released the video Thursday for "Goin' In," a track featuring Lil' Wayne and Flo Rida that Lopez recorded for the soundtrack to "Step Up Revolution," which arrives in theaters on Friday.  The singer just revealed last week that she won't be returning as a judge on "American Idol," saying she wants to focus more on her music and acting careers.  Check out the "Goin' In" video below.